Add liblastfm2 and make tomahawk build against it

thirdparty/liblastfm2/tests/TestTrack.h

@@ -0,0 +1,35 @@
+/*
+   This software is in the public domain, furnished "as is", without technical 
+   support, and with no warranty, express or implied, as to its usefulness for 
+   any purpose.
+*/
+#include <QtTest>
+#include <lastfm/Track>
+using lastfm::Track;
+
+class TestTrack : public QObject
+{
+    Q_OBJECT
+    
+    Track example()
+    {
+        lastfm::MutableTrack t;
+        t.setTitle( "Test Title" );
+        t.setArtist( "Test Artist" );
+        t.setAlbum( "Test Album" );
+        return t;
+    }
+    
+private slots:
+    void testClone()
+    {
+        Track original = example();
+        Track copy = original;
+        
+        #define TEST( x ) QVERIFY( original.x == copy.x )
+        TEST( title() );
+        TEST( artist() );
+        TEST( album() );
+        #undef TEST
+    }
+};